/* Assembly backend for the OpenRISC 1000.
- Copyright (C) 2002 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
Contributed by Damjan Lampret <lampret@opencores.org>.
Modified bu Johan Rydberg, <johan.rydberg@netinsight.se>.
Based upon a29k port.
static struct hash_control *op_hash = NULL;
struct machine_it
- {
- char * error;
- unsigned long opcode;
- struct nlist * nlistp;
- expressionS exp;
- int pcrel;
- int reloc_offset; /* Offset of reloc within insn. */
- int reloc;
- }
+{
+ char * error;
+ unsigned long opcode;
+ struct nlist * nlistp;
+ expressionS exp;
+ int pcrel;
+ int reloc_offset; /* Offset of reloc within insn. */
+ int reloc;
+}
the_insn;
-static void machine_ip PARAMS ((char *));
-
const pseudo_typeS md_pseudo_table[] =
- {
- {"align", s_align_bytes, 4 },
- {"space", s_space, 0 },
- {"cputype", s_ignore, 0 },
- {"reg", s_lsym, 0 }, /* Register equate, same as equ. */
- {"sect", s_ignore, 0 }, /* Creation of coff sections. */
- {"proc", s_ignore, 0 }, /* Start of a function. */
- {"endproc", s_ignore, 0 }, /* Function end. */
- {"word", cons, 4 },
- {NULL, 0, 0 },
- };
+{
+ {"align", s_align_bytes, 4 },
+ {"space", s_space, 0 },
+ {"cputype", s_ignore, 0 },
+ {"reg", s_lsym, 0 }, /* Register equate, same as equ. */
+ {"sect", s_ignore, 0 }, /* Creation of coff sections. */
+ {"proc", s_ignore, 0 }, /* Start of a function. */
+ {"endproc", s_ignore, 0 }, /* Function end. */
+ {"word", cons, 4 },
+ {NULL, 0, 0 },
+};
int md_short_jump_size = 4;
int md_long_jump_size = 4;
/* "l.jalr r9" precalculated opcode. */
static unsigned long jalr_r9_opcode;
+static void machine_ip (char *);
-static int check_invalid_opcode PARAMS ((unsigned long));
-static void encode PARAMS ((const struct machine_opcode *, unsigned long *, signed long, char));
-#ifdef BFD_ASSEMBLER
-static char * parse_operand PARAMS ((char *, expressionS *, int));
-#endif
/* Set bits in machine opcode according to insn->encoding
description and passed operand. */
static void
-encode (insn, opcode, param_val, param_ch)
- const struct machine_opcode *insn;
- unsigned long *opcode;
- signed long param_val;
- char param_ch;
+encode (const struct machine_opcode *insn,
+ unsigned long *opcode,
+ signed long param_val,
+ char param_ch)
{
int opc_pos = 0;
int param_pos = 0;
need. */
void
-md_begin ()
+md_begin (void)
{
const char *retval = NULL;
int lose = 0;
continue;
}
- retval = hash_insert (op_hash, name, (PTR) &machine_opcodes[i]);
+ retval = hash_insert (op_hash, name, (void *) &machine_opcodes[i]);
if (retval != NULL)
{
fprintf (stderr, "internal error: can't hash `%s': %s\n",
encode (&machine_opcodes[insn_index ("l.jalr")], &jalr_r9_opcode, 9, 'B');
}
-/* Returs non zero if instruction is to be used. */
+/* Returns non zero if instruction is to be used. */
static int
-check_invalid_opcode (opcode)
- unsigned long opcode;
+check_invalid_opcode (unsigned long opcode)
{
return opcode == jalr_r9_opcode;
}
produce the bytes of data and relocation. */
void
-md_assemble (str)
- char *str;
+md_assemble (char *str)
{
char *toP;
#ifdef BFD_ASSEMBLER
static char *
-parse_operand (s, operandp, opt)
- char *s;
- expressionS *operandp;
- int opt;
+parse_operand (char *s, expressionS *operandp, int opt)
{
char *save = input_line_pointer;
char *new;
}
#else
-char *
-parse_operand (s, operandp, opt)
- char *s;
- expressionS *operandp;
- int opt;
+static char *
+parse_operand (char *s, expressionS *operandp, int opt)
{
char *save = input_line_pointer;
char *new;
else
mask_or_shift = 0;
-
expression (operandp);
if (operandp->X_op == O_absent)
#ifdef BFD_ASSEMBLER
static void
-machine_ip (str)
- char *str;
+machine_ip (char *str)
{
char *s;
const char *args;
If an operand matches, we modify the_insn or opcode appropriately,
and do a "continue". If an operand fails to match, we "break". */
if (insn->args[0] != '\0')
- {
- /* Prime the pump. */
- s = parse_operand (s, operand, insn->args[0] == 'I');
- }
+ /* Prime the pump. */
+ s = parse_operand (s, operand, insn->args[0] == 'I');
for (args = insn->args;; ++args)
{
}
if (*s == '(')
- {
- operand->X_op = O_constant;
-#if 0
- operand->X_add_number = 0; /* ??? if enabled load/store offsets
- are zero. */
-#endif
- }
+ operand->X_op = O_constant;
else if (*s == ')')
s += 1;
#if DEBUG
#else
static void
-machine_ip (str)
- char *str;
+machine_ip (char *str)
{
char *s;
const char *args;
}
if (*s == '(')
- {
- operand->X_op = O_constant;
-#if 0
- operand->X_add_number = 0; /* ??? if enabled load/store offsets
- are zero. */
-#endif
- }
+ operand->X_op = O_constant;
else if (*s == ')')
s += 1;
#if DEBUG
#define MAX_LITTLENUMS 6
char *
-md_atof (type, litP, sizeP)
- char type;
- char * litP;
- int * sizeP;
+md_atof (int type, char * litP, int * sizeP)
{
int prec;
LITTLENUM_TYPE words[MAX_LITTLENUMS];
/* Write out big-endian. */
void
-md_number_to_chars (buf, val, n)
- char *buf;
- valueT val;
- int n;
+md_number_to_chars (char *buf, valueT val, int n)
{
number_to_chars_bigendian (buf, val, n);
}
#ifdef BFD_ASSEMBLER
void
-md_apply_fix3 (fixP, val, seg)
- fixS * fixP;
- valueT * val;
- segT seg ATTRIBUTE_UNUSED;
+md_apply_fix3 (fixS * fixP, valueT * val, segT seg ATTRIBUTE_UNUSED)
{
char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
long t_val;
case BFD_RELOC_32_GOT_PCREL: /* 0000XXXX pattern in a word. */
if (!fixP->fx_done)
- {
- /* The linker tries to support both AMD and old GNU style
- R_IREL relocs. That means that if the addend is exactly
- the negative of the address within the section, the
- linker will not handle it correctly. */
-#if 0
- if (fixP->fx_pcrel
- && t_val != 0
- && t_val == - (fixP->fx_frag->fr_address + fixP->fx_where))
- as_bad_where
- (fixP->fx_file, fixP->fx_line,
- _("the linker will not handle this relocation correctly (1)"));
-#endif
- }
+ ;
else if (fixP->fx_pcrel)
{
long v = t_val >> 28;
}
#else
void
-md_apply_fix3 (fixP, valP, seg)
- fixS *fixP;
- valueT *valP;
- segT seg ATTRIBUTE_UNUSED;
+md_apply_fix3 (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
{
- long val = *(long*)valP;
+ long val = *valP;
char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
#if DEBUG
break;
case RELOC_WDISP30:
- val = (val >>= 2) + 1;
+ val = (val >> 2) + 1;
buf[0] |= (val >> 24) & 0x3f;
buf[1] = (val >> 16);
buf[2] = val >> 8;
break;
case RELOC_WDISP22:
- val = (val >>= 2) + 1;
+ val = (val >> 2) + 1;
/* FALLTHROUGH */
case RELOC_BASE22:
buf[1] |= (val >> 16) & 0x3f;
R_IREL relocs. That means that if the addend is exactly
the negative of the address within the section, the
linker will not handle it correctly. */
-#if 0
- if (fixP->fx_pcrel
- && val != 0
- && val == - (fixP->fx_frag->fr_address + fixP->fx_where))
- as_bad_where
- (fixP->fx_file, fixP->fx_line,
- _("the linker will not handle this relocation correctly (1)"));
-#endif
}
else if (fixP->fx_pcrel)
{
long v = val >> 28;
-#if 1
if (v != 0 && v != -1)
as_bad_where (fixP->fx_file, fixP->fx_line,
_("call/jmp target out of range (2)"));
-#endif
}
else
/* This case was supposed to be handled in machine_ip. */
#ifdef OBJ_COFF
short
-tc_coff_fix2rtype (fixP)
- fixS *fixP;
+tc_coff_fix2rtype (fixS *fixP)
{
#if DEBUG
printf ("tc_coff_fix2rtype\n");
switch (fixP->fx_r_type)
{
- case RELOC_32:
- return (R_WORD);
- case RELOC_8:
- return (R_BYTE);
- case RELOC_CONST:
- return (R_ILOHALF);
- case RELOC_CONSTH:
- return (R_IHIHALF);
- case RELOC_JUMPTARG:
- return (R_IREL);
+ case RELOC_32: return R_WORD;
+ case RELOC_8: return R_BYTE;
+ case RELOC_CONST: return R_ILOHALF;
+ case RELOC_CONSTH: return R_IHIHALF;
+ case RELOC_JUMPTARG: return R_IREL;
default:
printf ("need %d\n", fixP->fx_r_type);
abort ();
/* Should never be called for or32. */
void
-md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
- char * ptr ATTRIBUTE_UNUSED;
- addressT from_addr ATTRIBUTE_UNUSED;
- addressT to_addr ATTRIBUTE_UNUSED;
- fragS * frag ATTRIBUTE_UNUSED;
- symbolS * to_symbol ATTRIBUTE_UNUSED;
+md_create_short_jump (char * ptr ATTRIBUTE_UNUSED,
+ addressT from_addr ATTRIBUTE_UNUSED,
+ addressT to_addr ATTRIBUTE_UNUSED,
+ fragS * frag ATTRIBUTE_UNUSED,
+ symbolS * to_symbol ATTRIBUTE_UNUSED)
{
as_fatal ("or32_create_short_jmp\n");
}
#ifndef BFD_ASSEMBLER
void
-md_convert_frag (headers, seg, fragP)
- object_headers * headers ATTRIBUTE_UNUSED;
- segT seg ATTRIBUTE_UNUSED;
- register fragS * fragP ATTRIBUTE_UNUSED;
+md_convert_frag (object_headers * headers ATTRIBUTE_UNUSED,
+ segT seg ATTRIBUTE_UNUSED,
+ register fragS * fragP ATTRIBUTE_UNUSED)
{
as_fatal ("or32_convert_frag\n");
}
#else
void
-md_convert_frag (headers, seg, fragP)
- bfd * headers ATTRIBUTE_UNUSED;
- segT seg ATTRIBUTE_UNUSED;
- fragS * fragP ATTRIBUTE_UNUSED;
+md_convert_frag (bfd * headers ATTRIBUTE_UNUSED,
+ segT seg ATTRIBUTE_UNUSED,
+ fragS * fragP ATTRIBUTE_UNUSED)
{
as_fatal ("or32_convert_frag\n");
}
/* Should never be called for or32. */
void
-md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
- char * ptr ATTRIBUTE_UNUSED;
- addressT from_addr ATTRIBUTE_UNUSED;
- addressT to_addr ATTRIBUTE_UNUSED;
- fragS * frag ATTRIBUTE_UNUSED;
- symbolS * to_symbol ATTRIBUTE_UNUSED;
+md_create_long_jump (char * ptr ATTRIBUTE_UNUSED,
+ addressT from_addr ATTRIBUTE_UNUSED,
+ addressT to_addr ATTRIBUTE_UNUSED,
+ fragS * frag ATTRIBUTE_UNUSED,
+ symbolS * to_symbol ATTRIBUTE_UNUSED)
{
as_fatal ("or32_create_long_jump\n");
}
/* Should never be called for or32. */
int
-md_estimate_size_before_relax (fragP, segtype)
- fragS * fragP ATTRIBUTE_UNUSED;
- segT segtype ATTRIBUTE_UNUSED;
+md_estimate_size_before_relax (fragS * fragP ATTRIBUTE_UNUSED,
+ segT segtype ATTRIBUTE_UNUSED)
{
as_fatal ("or32_estimate_size_before_relax\n");
return 0;
#ifdef OBJ_AOUT
void
-tc_aout_fix_to_chars (where, fixP, segment_address_in_file)
- char *where;
- fixS *fixP;
- relax_addressT segment_address_in_file;
+tc_aout_fix_to_chars (char *where,
+ fixS *fixP,
+ relax_addressT segment_address_in_file)
{
long r_symbolnum;
const char *md_shortopts = "";
struct option md_longopts[] =
- {
- { NULL, no_argument, NULL, 0 }
- };
+{
+ { NULL, no_argument, NULL, 0 }
+};
size_t md_longopts_size = sizeof (md_longopts);
int
-md_parse_option (c, arg)
- int c ATTRIBUTE_UNUSED;
- char * arg ATTRIBUTE_UNUSED;
+md_parse_option (int c ATTRIBUTE_UNUSED, char * arg ATTRIBUTE_UNUSED)
{
return 0;
}
void
-md_show_usage (stream)
- FILE * stream ATTRIBUTE_UNUSED;
+md_show_usage (FILE * stream ATTRIBUTE_UNUSED)
{
}
\f
definitions of or32 style local labels. */
int
-or32_unrecognized_line (c)
- int c;
+or32_unrecognized_line (int c)
{
int lab;
char *s;
return 1;
}
-#ifndef BFD_ASSEMBLER
-/* Record a fixup for a cons expression. */
-/*
- void
-or32_cons_fix_new (frag, where, nbytes, exp)
- fragS *frag;
- int where;
- int nbytes;
- expressionS *exp;
-{
- fix_new_exp (frag, where, nbytes, exp, 0,
- nbytes == 5 ? RELOC_32
- : nbytes == 2 ? RELOC_16
- : RELOC_8);
-}
-void
-tc_aout_pre_write_hook ()
-{
-#if DEBUG
- printf ("In tc_aout_pre_write_hook()\n");
-#endif
-}
-*/
-#endif
-
/* Default the values of symbols known that should be "predefined". We
don't bother to predefine them unless you actually use one, since there
are a lot of them. */
symbolS *
-md_undefined_symbol (name)
- char *name ATTRIBUTE_UNUSED;
+md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
{
#ifndef BFD_ASSEMBLER
long regnum;
/* Register name. */
if (name[0] == 'r' || name[0] == 'R' || name[0] == 'a' || name[0] == 'b')
{
- long maxreg;
-
/* Parse the number, make sure it has no extra zeroes or
trailing chars. */
regnum = atol (& name[1]);
/* Parse an operand that is machine-specific. */
void
-md_operand (expressionP)
- expressionS *expressionP;
+md_operand (expressionS *expressionP)
{
#if DEBUG
printf (" md_operand(input_line_pointer = %s)\n", input_line_pointer);
/* Round up a section size to the appropriate boundary. */
valueT
-md_section_align (segment, size)
- segT segment ATTRIBUTE_UNUSED;
- valueT size ATTRIBUTE_UNUSED;
+md_section_align (segT segment ATTRIBUTE_UNUSED, valueT size ATTRIBUTE_UNUSED)
{
return size; /* Byte alignment is fine. */
}
which we have set up as the address of the fixup too. */
long
-md_pcrel_from (fixP)
- fixS *fixP;
+md_pcrel_from (fixS *fixP)
{
return fixP->fx_where + fixP->fx_frag->fr_address;
}
#ifdef BFD_ASSEMBLER
arelent *
-tc_gen_reloc (seg, fixp)
- asection *seg ATTRIBUTE_UNUSED;
- fixS *fixp;
+tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
{
arelent *reloc;
- reloc = (arelent *) xmalloc (sizeof (arelent));
- reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
+ reloc = xmalloc (sizeof (arelent));
+ reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
*reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
/* reloc->address = fixp->fx_frag->fr_address + fixp->fx_where + fixp->fx_addnumber;*/
return NULL;
}
- if ( fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY
- || fixp->fx_r_type == BFD_RELOC_VTABLE_INHERIT)
- reloc->addend = fixp->fx_offset;
- else
- reloc->addend = fixp->fx_addnumber;
+ if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
+ reloc->address = fixp->fx_offset;
+ reloc->addend = fixp->fx_addnumber;
return reloc;
}
#endif
-
projects / platform / upstream / binutils.git / blobdiff